US4197185A - Process for the conversion of olefinic C4 cuts from steam cracking to high octane gasoline and butane - Google Patents

Process for the conversion of olefinic C4 cuts from steam cracking to high octane gasoline and butane Download PDF

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Publication number
US4197185A
US4197185A US05/936,965 US93696578A US4197185A US 4197185 A US4197185 A US 4197185A US 93696578 A US93696578 A US 93696578A US 4197185 A US4197185 A US 4197185A
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United States
Prior art keywords
butane
fraction
process according
isobutane
hydrogenation
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Expired - Lifetime
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US05/936,965
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English (en)
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Jean-Francois Le Page
Jean Cosyns
Jean Miquel
Bernard Juguin
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IFP Energies Nouvelles IFPEN
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IFP Energies Nouvelles IFPEN
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/04—Liquid carbonaceous fuels essentially based on blends of hydrocarbons
    • C10L1/06—Liquid carbonaceous fuels essentially based on blends of hydrocarbons for spark ignition
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/02—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons
    • C07C2/04—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation
    • C07C2/06—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation of alkenes, i.e. acyclic hydrocarbons having only one carbon-to-carbon double bond
    • C07C2/08—Catalytic processes
    • C07C2/10—Catalytic processes with metal oxides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/02—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation
    • C07C5/03—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation of non-aromatic carbon-to-carbon double bonds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G69/00—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one other conversion process
    • C10G69/02—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one other conversion process plural serial stages only
    • C10G69/12—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one other conversion process plural serial stages only including at least one polymerisation or alkylation step
    • C10G69/126—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one other conversion process plural serial stages only including at least one polymerisation or alkylation step polymerisation, e.g. oligomerisation
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
    • C10G9/34—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils by direct contact with inert preheated fluids, e.g. with molten metals or salts
    • C10G9/36—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils by direct contact with inert preheated fluids, e.g. with molten metals or salts with heated gases or vapours
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2521/00—Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
    • C07C2521/02—Boron or aluminium; Oxides or hydroxides thereof
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2521/00—Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
    • C07C2521/02—Boron or aluminium; Oxides or hydroxides thereof
    • C07C2521/04—Alumina
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2521/00—Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
    • C07C2521/12—Silica and alumina
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
    • C07C2523/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the iron group metals or copper
    • C07C2523/74—Iron group metals
    • C07C2523/75—Cobalt
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
    • C07C2523/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the iron group metals or copper
    • C07C2523/74—Iron group metals
    • C07C2523/755—Nickel
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
    • C10G2400/02—Gasoline

Definitions

  • the process consists, in a first step, of selectively polymerizing isobutene to dimers and trimers, with a minimum conversion of the normal butenes (without substantial conversion of butane or isobutane of the charge: converting less than 10% of isobutane by weight, and less than 2, or better 1%, by weight of butane), then, in a second step, of hydrogenating the mixture obtained after polymerization, to normal butane, isooctane and isododecane.
  • VVH Space velocity
  • the normal butane fraction generally containing less than 15% by weight of isobutane, issued from separator 18 and withdrawn through line 21, is recycled through lines 23 and 24 to the steam cracking unit.
  • a portion of the butane and the isobutane contained in this fraction may be recycled through line 22 to the distillation or stabilization column 15, another portion may be recycled to the polymerization zone 2 through lines 23 and 25, pump 26 and line 27.
  • the purge gas discharged through line 28 from separator 9, to a second absorption, not illustrated on the figure, by means of a portion of the product of line 16 at the bottom of the stabilization column.
  • the gasoline charged with butanes and propane from this absorption step is recycled to the stabilization column.
  • the catalyst used for the hydrogenation may be either a catalyst based on nickel or a catalyst making use of a noble metal or a mixture of noble metals as active agents; in the latter case, palladium or platinum are used preferably.
  • the hydrogenation catalyst carrier must be a non-acid carrier so as to avoid parasitic polymerization reactions resulting in the formation of gums which clog the catalyst.
  • the carriers which can be used are silica, kieselguhr (hydrated silica), aluminas of low specific surface (less than 100 m 2 /g and particularly from 10 to 90 m 2 /g), and the nickel or cobalt aluminates prepared, for example, from cubic ⁇ alumina containing 5 to 10% of nickel or cobalt oxides introduced, for example, as nitrates, the so-impregnated carrier being then roasted at a temperature from 800° to 900° C.
  • the diluted charge No. 1 is treated in the same apparatus as that described in example 1 but with catalysts of different formulas: the polymerization catalyst is still silica-alumina, but prepared according to the following method: 137 g of alumina hydrate Al(OH) 3 is suspended into 2.3 kg of a limpid solution of colloidal silica containing 30% of SiO 2 . Silica is then precipitated by acidifying the solution with nitric acid. Silica precipitates as a gel covering the particles of the aluminum hydrate initially added to the solution. The resulting gel is dried at 120° C. and then extruded. The resulting extrudates are then roasted at 600° C. for 4 hours; the surface of the resulting catalyst is 327 m 2 .g -1 for a pore volume of 0.47 cc.g -1 and its alumina content is 24% by weight (catalyst K 2 ).
  • the hydrogenation catalyst is a catalyst based on prereduced nickel containing 42% by weight of nickel deposited on Kieselguhr and used as pills of 4 mm diameter (catalyst K 2 ').
  • the catalyst is reduced at 210° C. under hydrogen stream before use.
  • the other operating conditions as well for polymerization as for hydrogenation, are the same as in example 1.
  • the results are reported in Table IV. Various recyclings are performed as indicated in example 1 and to the same extent.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
US05/936,965 1977-08-26 1978-08-25 Process for the conversion of olefinic C4 cuts from steam cracking to high octane gasoline and butane Expired - Lifetime US4197185A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7726279A FR2401122A1 (fr) 1977-08-26 1977-08-26 Procede pour la conversion des coupes c4 olefiniques de vapocraquage en isooctane et en butane
FR7726279 1977-08-26

Publications (1)

Publication Number Publication Date
US4197185A true US4197185A (en) 1980-04-08

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ID=9194854

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US05/936,965 Expired - Lifetime US4197185A (en) 1977-08-26 1978-08-25 Process for the conversion of olefinic C4 cuts from steam cracking to high octane gasoline and butane

Country Status (10)

Country Link
US (1) US4197185A (de)
JP (1) JPS5444604A (de)
BE (1) BE869864A (de)
CA (1) CA1120502A (de)
DE (1) DE2836645A1 (de)
FR (1) FR2401122A1 (de)
GB (1) GB2003176B (de)
IT (1) IT1098265B (de)
NL (1) NL7808755A (de)
ZA (1) ZA784663B (de)

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4324646A (en) * 1978-03-31 1982-04-13 Institute Francais Du Petrole Process for converting C4 olefinic cracking cuts to alkylate and gasoline
US4444988A (en) * 1982-07-22 1984-04-24 Mobil Oil Corporation Use of liquefied propane and butane or butane recycle to control heat of reaction of converting olefins to gasoline and distillate
US4542247A (en) * 1984-09-14 1985-09-17 Mobil Oil Corporation Conversion of LPG hydrocarbons to distillate fuels or lubes using integration of LPG dehydrogenation and MOGDL
US4675461A (en) * 1983-06-29 1987-06-23 Mobil Oil Corporation Conversion of LPG hydrocarbons into distillate fuels using an integral LPG dehydrogenation-MOGD process
US4749820A (en) * 1984-09-14 1988-06-07 Mobil Oil Corporation Integration of paraffin dehydrogenation with MOGD to minimize compression and gas plant separation
US5877372A (en) * 1997-11-21 1999-03-02 Arco Chemical Technology, L.P. Isobutylene oligomerization using isooctane diluent
US6153089A (en) * 1999-03-29 2000-11-28 Indian Oil Corporation Limited Upgradation of undesirable olefinic liquid hydrocarbon streams
US6241791B1 (en) 1999-03-31 2001-06-05 Snamprogetti S.P.A. Liquid mixture suitable as gasoline
WO2001051435A1 (en) * 2000-01-14 2001-07-19 Arco Chemical Technology, L.P. Selective olefin oligomerization
US6329561B1 (en) * 2000-09-27 2001-12-11 Equistar Chemicals, Lp Impurities removal
US6689927B1 (en) 2001-05-07 2004-02-10 Uop Lcc Process for oligomer production and saturation
US20040097773A1 (en) * 2002-08-06 2004-05-20 Oxeno Olefinchemie Gmbh Oligomerization of isobutene in N-butenic hydrocarbon streams
US20050077211A1 (en) * 2003-10-10 2005-04-14 Snamprogetti S.P. A. Process for the production of hydrocarbon blends with a high octane number by the hydrogenation of hydrocarbon blends containing branched olefinic cuts
WO2007135043A1 (en) * 2006-05-19 2007-11-29 Shell Internationale Research Maatschappij B.V. Process for the preparation op propylene and industrial plant thereof
US20090105434A1 (en) * 2006-05-19 2009-04-23 Leslie Andrew Chewter Process for the preparation of propylene
US20090105429A1 (en) * 2006-05-19 2009-04-23 Leslie Andrew Chewter Process for the preparation of an olefin
US20090187057A1 (en) * 2006-05-19 2009-07-23 Leslie Andrew Chewter Process for the preparation of c5 and/or c6 olefin
US20090187058A1 (en) * 2006-05-19 2009-07-23 Leslie Andrew Chewter Process for the preparation of an olefin
US20090187056A1 (en) * 2006-05-19 2009-07-23 Leslie Andrew Chewter Process for the preparation of an olefin
US20090187059A1 (en) * 2006-05-19 2009-07-23 Leslie Andrew Chewter Process for the preparation of an olefin
EP2083002A1 (de) 2008-01-28 2009-07-29 Ifp Oligomerisierungsverfahren von Olefinen mit Hilfe eines Katalysators auf Silizium-Aluminium-Basis
US20090227824A1 (en) * 2006-05-19 2009-09-10 Leslie Andrew Chewter Process for the alkylation of a cycloalkene
US20090270669A1 (en) * 2006-05-19 2009-10-29 Leslie Andrew Chewter Process for the preparation of propylene from a hydrocarbon feed
US20090299109A1 (en) * 2007-12-03 2009-12-03 Gruber Patrick R Renewable Compositions
US20100216958A1 (en) * 2009-02-24 2010-08-26 Peters Matthew W Methods of Preparing Renewable Butadiene and Renewable Isoprene
US20100268007A1 (en) * 2007-11-19 2010-10-21 Van Westrenen Jeroen Process for converting an oxygenate into an olefin-containing product, and reactor system
US20100298619A1 (en) * 2007-11-19 2010-11-25 Leslie Andrew Chewter Process for the preparation of an olefinic product
EP2308814A1 (de) 2009-10-08 2011-04-13 IFP Energies nouvelles Verfahren zur Oligomerisierung von Olefinen unter Verwendung von auf meso-/makroporöse Siliciumdioxid-Aluminiumdioxid basierter Katalysator
US20110087000A1 (en) * 2009-10-06 2011-04-14 Gevo, Inc. Integrated Process to Selectively Convert Renewable Isobutanol to P-Xylene
WO2011135206A1 (fr) 2010-04-28 2011-11-03 IFP Energies Nouvelles Procede d'oligomerisation des olefines utilisant au moins un catalyseur organique possedant une forte densite de sites acides
WO2012131184A1 (fr) 2011-03-31 2012-10-04 IFP Energies Nouvelles Procede d'oligomerisation d'une charge hydrocarbonee olefinique utilisant un catalyseur comprenant un materiau de la famille des zif de type structural sod
US8373012B2 (en) 2010-05-07 2013-02-12 Gevo, Inc. Renewable jet fuel blendstock from isobutanol
US8378160B2 (en) 2007-12-03 2013-02-19 Gevo, Inc. Renewable compositions
US8450543B2 (en) 2010-01-08 2013-05-28 Gevo, Inc. Integrated methods of preparing renewable chemicals
US8742187B2 (en) 2011-04-19 2014-06-03 Gevo, Inc. Variations on prins-like chemistry to produce 2,5-dimethylhexadiene from isobutanol
EP2792730A1 (de) 2013-04-16 2014-10-22 Sasol Technology (Proprietary) Limited Verfahren zur Herstellung von Düsentreibstoff aus einem Kohlenwasserstoffsyntheseproduktstrom
KR20140127205A (ko) * 2012-02-08 2014-11-03 니치유 가부시키가이샤 파라핀 혼합물 및 그 제조 방법
CN104151119A (zh) * 2014-08-08 2014-11-19 山东利丰达生物科技有限公司 一种碳四深加工制备异辛烷的方法
WO2015124491A1 (fr) 2014-02-19 2015-08-27 IFP Energies Nouvelles Procédé d'oligomerisation d'olefines utilisant un catalyseur comprenant une zeolithe et un liant silicique ayant subi une etape de traitement thermique specifique
EP2995599A1 (de) * 2014-09-11 2016-03-16 Linde Aktiengesellschaft Verfahren und Anlage zur Herstellung von Kohlenwasserstoffen
EP2995600A1 (de) * 2014-09-11 2016-03-16 Linde Aktiengesellschaft Verfahren und Anlage zur Herstellung von Kohlenwasserstoffen
WO2018001920A1 (fr) 2016-06-30 2018-01-04 IFP Energies Nouvelles Procede d'oligomerisation utilisant un catalyseur zeolithique et un catalyseur comprenant une silice alumine

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EP0068981B1 (de) * 1981-06-26 1985-07-31 Institut Français du Pétrole Verfahren zur gleichzeitigen Herstellung von hochreinem Buten-1 und Superkraftstoff aus einem olefinischen C4-Schnitt
FR2517668A1 (fr) * 1981-12-08 1983-06-10 Inst Francais Du Petrole Procede d'obtention conjointe de butene-1 de haute purete, de supercarburant et de combustible pour carbureacteur
FR2515171B1 (fr) * 1981-10-28 1986-12-26 Inst Francais Du Petrole Procede de valorisation des coupes c4 olefiniques
JPS63176733U (de) * 1986-12-01 1988-11-16
JPS63195934U (de) * 1987-06-05 1988-12-16
IN170837B (de) * 1987-11-17 1992-05-30 Council Scient Ind Res
JPH06900U (ja) * 1992-06-05 1994-01-11 アラコ株式会社 格納式リヤシート
FR2873116B1 (fr) * 2004-07-15 2012-11-30 Inst Francais Du Petrole Procede d'oligomerisation des olefines utilisant un catalyseur a base de silice-alumine
US20060111598A1 (en) * 2004-11-22 2006-05-25 Shaw-Chan Lin Diisobutylene process

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US3654136A (en) * 1969-11-26 1972-04-04 Cities Service Oil Co Production of gasoline from natural gas
US3951780A (en) * 1974-10-25 1976-04-20 Exxon Research And Engineering Company Aromatic oils by thermal polymerization of refinery streams

Cited By (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4324646A (en) * 1978-03-31 1982-04-13 Institute Francais Du Petrole Process for converting C4 olefinic cracking cuts to alkylate and gasoline
US4444988A (en) * 1982-07-22 1984-04-24 Mobil Oil Corporation Use of liquefied propane and butane or butane recycle to control heat of reaction of converting olefins to gasoline and distillate
US4675461A (en) * 1983-06-29 1987-06-23 Mobil Oil Corporation Conversion of LPG hydrocarbons into distillate fuels using an integral LPG dehydrogenation-MOGD process
US4542247A (en) * 1984-09-14 1985-09-17 Mobil Oil Corporation Conversion of LPG hydrocarbons to distillate fuels or lubes using integration of LPG dehydrogenation and MOGDL
US4749820A (en) * 1984-09-14 1988-06-07 Mobil Oil Corporation Integration of paraffin dehydrogenation with MOGD to minimize compression and gas plant separation
EP1032550B1 (de) * 1997-11-21 2003-03-26 ARCO Chemical Technology, L.P. Verfahren zur oligomerisierung von isobuten
US5877372A (en) * 1997-11-21 1999-03-02 Arco Chemical Technology, L.P. Isobutylene oligomerization using isooctane diluent
KR100560415B1 (ko) * 1997-11-21 2006-03-13 아르코 케미컬 테크날러쥐. 엘.피. 이소옥탄 희석제를 사용하는 이소부틸렌 소중합체 제조방법
US6153089A (en) * 1999-03-29 2000-11-28 Indian Oil Corporation Limited Upgradation of undesirable olefinic liquid hydrocarbon streams
US6241791B1 (en) 1999-03-31 2001-06-05 Snamprogetti S.P.A. Liquid mixture suitable as gasoline
US6376731B1 (en) 2000-01-14 2002-04-23 Arco Chemical Technology, L.P. Selective olefin oligomerization
WO2001051435A1 (en) * 2000-01-14 2001-07-19 Arco Chemical Technology, L.P. Selective olefin oligomerization
US6329561B1 (en) * 2000-09-27 2001-12-11 Equistar Chemicals, Lp Impurities removal
US6689927B1 (en) 2001-05-07 2004-02-10 Uop Lcc Process for oligomer production and saturation
US7161053B2 (en) 2002-08-06 2007-01-09 Oxeno Olefinchemie Gmbh Oligomerization of isobutene in N-butenic hydrocarbon streams
US20040097773A1 (en) * 2002-08-06 2004-05-20 Oxeno Olefinchemie Gmbh Oligomerization of isobutene in N-butenic hydrocarbon streams
US7510646B2 (en) * 2003-10-10 2009-03-31 Snamprogetti S.P.A. Process for the production of hydrocarbon blends with a high octane number by the hydrogenation of hydrocarbon blends containing branched olefinic cuts
JP2007508404A (ja) * 2003-10-10 2007-04-05 スナムプロジェッティ ソシエタ ペル アチオニ 分枝状オレフィン留分を含む炭化水素ブレンドの水素化による高オクタン価を持つ炭化水素ブレンドの製造方法
US20050077211A1 (en) * 2003-10-10 2005-04-14 Snamprogetti S.P. A. Process for the production of hydrocarbon blends with a high octane number by the hydrogenation of hydrocarbon blends containing branched olefinic cuts
US20090187058A1 (en) * 2006-05-19 2009-07-23 Leslie Andrew Chewter Process for the preparation of an olefin
US20090105434A1 (en) * 2006-05-19 2009-04-23 Leslie Andrew Chewter Process for the preparation of propylene
US20090105429A1 (en) * 2006-05-19 2009-04-23 Leslie Andrew Chewter Process for the preparation of an olefin
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ZA784663B (en) 1979-08-29
FR2401122A1 (fr) 1979-03-23
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NL7808755A (nl) 1979-02-28
CA1120502A (fr) 1982-03-23
IT7826919A0 (it) 1978-08-22
JPS6138234B2 (de) 1986-08-28
JPS5444604A (en) 1979-04-09
IT1098265B (it) 1985-09-07
BE869864A (fr) 1979-02-21
DE2836645C2 (de) 1989-04-27
DE2836645A1 (de) 1979-03-01
FR2401122B1 (de) 1980-11-28

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